一、軟啟動器的主要參數有什么
軟啟(qi)動器的參數主要(yao)有啟(qi)動時(shi)間,停止(zhi)時(shi)間,啟(qi)動最大電流(liu),啟(qi)動初(chu)始電壓(ya)。
1、啟動(dong)時間(一般為0.5——60s)是指軟啟動(dong)器將電動(dong)機(ji)從停止(zhi)啟動(dong)到全壓全速所需的時間。
2、啟動(dong)(dong)電(dian)流是指電(dian)動(dong)(dong)機在啟動(dong)(dong)過程中(zhong)以不超過這個電(dian)流逐步升壓的(de)啟動(dong)(dong)限制電(dian)流。
3、停止時(shi)間(jian)是(shi)指(zhi)電動機從運行到停止所用的時(shi)間(jian)。
4、啟動(dong)初始(shi)電壓(ya)為(wei)啟動(dong)開始(shi)時的輸出(chu)電壓(ya)。
軟啟動器的參(can)數(shu)設(she)定有的廠(chang)家是通(tong)過(guo)面板的顯(xian)示羼和按鍵,有的廠(chang)家是通(tong)過(guo)電位器來設(she)定。
二、軟啟動器需要設置哪些參數
一(yi)般系(xi)統參(can)(can)(can)數(shu)(shu)是廠(chang)(chang)家內部的(de)(de)一(yi)些(xie)參(can)(can)(can)數(shu)(shu),作為用戶(hu)(hu)是不(bu)需要(yao)調的(de)(de)。保(bao)(bao)護參(can)(can)(can)數(shu)(shu)有欠壓保(bao)(bao)護、缺相保(bao)(bao)護、過流保(bao)(bao)護、相電流不(bu)平衡(heng)保(bao)(bao)護。這些(xie)參(can)(can)(can)數(shu)(shu)出廠(chang)(chang)的(de)(de)時候基本已經(jing)設置(zhi)(zhi)好了,用戶(hu)(hu)不(bu)需要(yao)做(zuo)大的(de)(de)改(gai)動(dong)。只有啟動(dong)參(can)(can)(can)數(shu)(shu)是要(yao)根據實際啟動(dong)負(fu)載(zai)做(zuo)相應的(de)(de)調整。啟動(dong)參(can)(can)(can)數(shu)(shu)包(bao)括啟動(dong)方式、初始電壓、限流倍數(shu)(shu)等,最常設置(zhi)(zhi)的(de)(de)也是這幾種參(can)(can)(can)數(shu)(shu)。
1、起(qi)動(dong)方式一般有電(dian)壓(ya)斜坡起(qi)動(dong)、限流起(qi)動(dong)、斜坡限流起(qi)動(dong)、突調電(dian)壓(ya)起(qi)動(dong)等。
2、初始(shi)電(dian)壓太(tai)小軟(ruan)啟動(dong)器(qi)起動(dong)電(dian)機只聽電(dian)機嗡嗡響(xiang)電(dian)機不轉,這說明力(li)矩(ju)太(tai)小,初始(shi)電(dian)壓太(tai)大軟(ruan)啟動(dong)器(qi)起動(dong)電(dian)機又太(tai)猛,失去(qu)了軟(ruan)起動(dong)的效果,所以初始(shi)電(dian)壓大小根(gen)據負載輕重做適當的修改(gai)。
3、限(xian)流(liu)(liu)(liu)倍(bei)數(shu)(shu)(shu)是指起(qi)動(dong)電(dian)(dian)機(ji)(ji)(ji)(ji)時候,瞬間(jian)電(dian)(dian)流(liu)(liu)(liu)控制在(zai)額定電(dian)(dian)流(liu)(liu)(liu)的倍(bei)數(shu)(shu)(shu)內(nei),例如(ru),75KW軟啟動(dong)器(qi)(qi)限(xian)流(liu)(liu)(liu)倍(bei)數(shu)(shu)(shu)設置(zhi)(zhi)成3,380V75KW軟啟動(dong)器(qi)(qi)額定電(dian)(dian)流(liu)(liu)(liu)是150A,那(nei)么起(qi)動(dong)時候,電(dian)(dian)機(ji)(ji)(ji)(ji)電(dian)(dian)流(liu)(liu)(liu)控制在(zai)450A以內(nei)。限(xian)流(liu)(liu)(liu)倍(bei)數(shu)(shu)(shu)設置(zhi)(zhi)過(guo)大(da),對電(dian)(dian)網(wang)沖擊較(jiao)大(da),設置(zhi)(zhi)過(guo)小,電(dian)(dian)機(ji)(ji)(ji)(ji)啟動(dong)不起(qi)來(lai),所(suo)以這個(ge)要根(gen)據實際情況設置(zhi)(zhi);軟停(ting)車功(gong)能(neng),是需要電(dian)(dian)機(ji)(ji)(ji)(ji)緩慢停(ting)下來(lai)的場(chang)合進行設置(zhi)(zhi)的。如(ru)深井泵(beng),皮(pi)帶機(ji)(ji)(ji)(ji)。其余地方用(yong)的比較(jiao)少(shao)。